Research on Overvoltage and Its Suppression of Electric Vehicle Variable Frequency Speed Control System
In response to the IGBT turn off overvoltage and oscillation problems in the variable frequency speed regulation system of electric vehicles,this article analyzes the advantages and disadvantages of overvoltage suppression schemes based on in-depth research on the mechanism of overvoltage generation,and proposes a new type of overvoltage suppression protection circuit scheme.The simulation results show that IGBT protection circuit can effectively suppress overvoltage in electric vehicle variable frequency speed regulation,play a good protective role,and thus improve the stability of electric vehicle variable frequency speed regulation system.
electric vehiclesvariable frequency speed regulation systemIGBTovervoltage suppression
万方数据
维普
